<?xml version="1.0" encoding="UTF-8"?>
<document type="test">
  <metadata>
    <title>XML Test Document</title>
    <format>xml</format>
    <word_count>15</word_count>
  </metadata>
  <content>
    <section>This XML document should be detected as XML format.</section>
    <section>It contains structured markup for testing.</section>
  </content>
</document>